Solder Termination, Right Angle Phono PlugType 3501FP for front panel mount in 0.25\" (6.35 mm) holes in panels up to 0.125\" thick. Type 3501FR for rear panel mount in 0.375\" hole in panels up to 0.203\" thick. Type 3502 has unique cable clamp with 0.406\" O.D. shielded removable handle. Type 3503 extension jack has shielded removable handle 0.406\" O.D. with cable clamp. Series 3558 are phono plugs with cable clamp and snap-on color-coded plastic handles in red, black, and white.Switchcraft’s right-angle phono plugs (3502RA) features an easy-to-assemble three piece construction: a handle, insulator and plug assembly. The plug features a solid-pin design and large solder terminals that make termination faster and easier. The reduc